code: def load_unifiedqa(self, state_dict):
      self.load_state_dict(state_dict)
      self.encoder = T5EncoderWrapper(self.encoder)
  
file_path: lavis/lavis/models/pnp_vqa_models/pnp_unifiedqav2_fid.py
imports: import torch
  import torch.nn
  from lavis.common.registry import registry
  from lavis.models.base_model import BaseModel
  from lavis.common.utils import get_abs_path
  from transformers import T5Config, T5Tokenizer, T5ForConditionalGeneration
label_desc: Use image node_id 4 for calling the PNPUnifiedQAv2FiD obj's underlying member method code with example usage: obj.load_unifiedqa(state_dict) without return types